Fixes#104
@status filter was added to the master branch to support new status key from Alertmanager >=0.6.1
status ended up being nested in Alertmanager (it was added to solve AM issue 609 and that was a long PR with lots of changes), current unsee implementation ended being slightly off with how Alertmanager is naming this, it should actually be @state rather than @status.
This makes unsee work with 0.6.1, but the new status means that we should refactor unsee data model and pull inhibited and silenced into it, with a single filter
This modules allows to have a dedicated path for unmarshaling Alertmanager reponse per Alertmanager version. It returns data in format handled internally by unsee (which is Alertmanager data + some additional attributes)
